Thesis
Microstructure evolution during processing of U10Mo alloy
Washington State University
Master of Science (MS), Washington State University
2017
Handle:
https://hdl.handle.net/2376/102304
Abstract
Microstructure analysis and recrystallization texture of U10Mo alloy was studied. Uranium with 10% Molybdenum alloy is a nuclear fuel in which recrystallization texture plays a key role in its efficiency. Grain structure, grain size and texture affect the swelling kinetics of the grains in U10Mo alloy when consumed as a fuel. The first set of sample include: hot rolled samples (15% reduction per pass at 650⁰C) with intermediate annealing at 700⁰C were prepared to analyze the texture and recrystallization behavior after deformation. Two samples hot rolled with four passes were prepared at different initial homogenization temperatures to check the change in resulting texture. An additional four samples were prepared to study the recrystallization behavior by annealing the samples at 700⁰C in an inert and air furnace. The second set of sample include: studies of microstructure development as a function of strain in U10Mo wedge-shaped annealed samples. Two sets of cast samples were prepared out of which one set was homogenized at 900⁰C for 48 hours and another set was left as-cast. Each set includes two samples, out of which one was deformed with hot rolling (at 650⁰C with strain up to 0.7) and the other deformed with cold rolling (strain up to 0.3) and then post-annealed at 700⁰C. EBSD (electron back scatter diffraction) images were collected for all samples and later analysis was done to quantify the microstructures.
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Details
- Title
- Microstructure evolution during processing of U10Mo alloy
- Creators
- Karun Kalia
- Contributors
- David P. Field (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Mechanical and Materials Engineering, School of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; [Pullman, Washington] :
- Identifiers
- 99900525114701842
- Language
- English
- Resource Type
- Thesis